CN112979139B - Zero-emission sludge drying system adopting solution absorption-vapor compression combined cycle - Google Patents
Zero-emission sludge drying system adopting solution absorption-vapor compression combined cycle Download PDFInfo
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- CN112979139B CN112979139B CN202110221030.5A CN202110221030A CN112979139B CN 112979139 B CN112979139 B CN 112979139B CN 202110221030 A CN202110221030 A CN 202110221030A CN 112979139 B CN112979139 B CN 112979139B
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- 238000001035 drying Methods 0.000 title claims abstract description 32
- 239000010802 sludge Substances 0.000 title claims abstract description 13
- 230000006835 compression Effects 0.000 title claims abstract description 8
- 238000007906 compression Methods 0.000 title claims abstract description 8
- 239000007921 spray Substances 0.000 claims abstract description 70
- 239000002912 waste gas Substances 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims description 16
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 7
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 6
- 229910001622 calcium bromide Inorganic materials 0.000 claims description 3
- WGEFECGEFUFIQW-UHFFFAOYSA-L calcium dibromide Chemical compound [Ca+2].[Br-].[Br-] WGEFECGEFUFIQW-UHFFFAOYSA-L 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 12
- 239000010865 sewage Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Drying Of Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The application discloses a zero-emission sludge drying system adopting solution absorption-vapor compression combined cycle, which comprises a spray tower and a dryer, wherein the spray tower and the dryer are filled with hygroscopic solution, a circulating waste gas pipe for introducing waste gas of the dryer into the spray tower is arranged between the dryer and the spray tower, and a drying waste gas pipe for introducing waste gas in the spray tower into the dryer is arranged between the spray tower and the dryer; the spray tower is provided with a high-temperature water pipe, the high-temperature water pipe penetrates through the heat exchanger and is communicated with the spray tower, and a first water pump is mounted on the high-temperature water pipe; the dryer is characterized by further comprising a heat pump, wherein an intermediate medium pipe is connected to the dryer, the intermediate medium pipe penetrates through the heat pump and then is communicated with the dryer, and a medium heat source pipe used for transferring heat of the heat exchanger is arranged between the heat exchanger and the heat pump. This application has the thermal effect in the make full use of waste gas.
Description
Technical Field
The application relates to the technical field of waste gas treatment, in particular to a zero-emission sludge drying system adopting solution absorption-vapor compression combined cycle.
Background
At present, energy conservation and emission reduction are increasingly emphasized, the tail of a boiler in various industrial and civil fields has large smoke discharge amount, and waste gas and waste heat still have large recycling space. In order to reduce environmental pollution, smoke is generated by combustion, so that waste gas generated by combustion needs to be treated, and substances in the waste gas are treated to reach emission regulations. In the process of purifying waste gas in the prior art, the heat in the waste gas is not utilized, and dust can not be effectively removed at the end of tail gas purification, and finally incineration treatment is needed.
Disclosure of Invention
In order to fully utilize the heat in the waste gas, the application provides a zero-emission sludge drying system with a solution absorption-steam compression combined cycle.
The technical scheme is as follows: the zero-emission sludge drying system with the combined cycle of solution absorption and vapor compression comprises a spray tower and a dryer, wherein the spray tower and the dryer are filled with hygroscopic solution, a circulating waste gas pipe for introducing waste gas of the dryer into the spray tower is arranged between the dryer and the spray tower, and a drying waste gas pipe for introducing waste gas in the spray tower into the dryer is arranged between the spray tower and the dryer.
As a preferred technical scheme, the spray tower is further provided with a heat exchanger, the spray tower is provided with a high-temperature water pipe, the high-temperature water pipe penetrates through the heat exchanger and then is communicated with the spray tower, and the high-temperature water pipe is provided with a first water pump.
As a preferred technical scheme, the dryer also comprises a heat pump, wherein an intermediate medium pipe is connected to the dryer, the intermediate medium pipe penetrates through the heat pump and then is communicated with the dryer, and a medium heat source pipe for transferring heat of the heat exchanger is arranged between the heat exchanger and the heat pump.
As a preferable technical scheme, a concentration component for improving the concentration of the solution in the spray tower is arranged on the spray tower.
As a preferred technical scheme, the concentration component comprises a second water pump, a heat regenerator, an evaporator, a separator and a compressor, a thin liquid pipe is communicated and arranged between the heat regenerator and the spray tower, a thick liquid pipe is communicated and arranged between the heat regenerator and the spray tower, a high-temperature thin liquid pipe is communicated and arranged between the evaporator and the heat regenerator, a steam pipe is connected between the evaporator and the separator, a pipeline is communicated and arranged between the separator and the heat regenerator, a secondary steam pipe is connected between the separator and the compressor, and a return pipe is connected between the compressor and the evaporator.
In a preferred embodiment, the evaporator is connected to a condenser for cooling water vapor in the evaporator.
As a preferable technical scheme, the hygroscopic solution is one or more of a lithium bromide solution, a calcium bromide solution and ethylene glycol.
As a preferable technical scheme, a pollution discharge assembly for extracting waste materials in the spray tower is arranged at the bottom of the spray tower.
Has the beneficial effects that: (1) utilize one set of system, when the system need not to input outer steam that supplies, can be used for drying system with circulation behind the waste heat utilization and the pollutant desorption of stoving tail gas, can discharge with clean distilled water by the moisture in the drying medium simultaneously.
(2) The dew point of the dried tail gas is reduced after the solution spraying, the moisture content is reduced, and the tail gas can be circularly used as the drying air to achieve zero emission of the tail gas.
(3) After the dried tail gas is sprayed by the solution in the absorption tower, the dried tail gas is purified to be below 10ppm and recycled.
(4) Utilize multistage heat pump to retrieve the tail gas heat and be used for drying system, utilize the MVR system concentrated weak solution, entire system reaches zero steam consumption.
(5) The system discharges the water in the medium to be dried by clean distilled water, and can be further recycled.
(6) The system can efficiently utilize the heat in the tail gas to accelerate the drying efficiency of the dryer without inputting external supply steam again.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a spray tower and a dryer in an embodiment of the present application;
FIG. 3 is a schematic structural view of a thermal cycle assembly in an embodiment of the present application;
FIG. 4 is a schematic diagram of the structure of a concentration assembly in an embodiment of the present application;
fig. 5 is a schematic structural view of a soil exhaust assembly in an embodiment of the present application.
Reference numerals: 1. a spray tower; 11. a drying exhaust pipe; 12. a high-temperature water pipe; 13. a thin liquid pipe; 14. a sewage pump; 2. a heat pump; 21. a medium heat source pipe; 3. a dryer; 31. a circulating exhaust gas pipe; 32. a middle medium pipe; 4. a heat exchanger; 5. a first water pump; 6. a second water pump; 7. a heat regenerator; 71. a concentrate tube; 72. a high temperature thin liquid pipe; 8. an evaporator; 81. a steam pipe; 82. a condenser; 9. a separator; 91. a pipeline; 92. a secondary steam pipe; 10. a compressor; 101. a return pipe.
Detailed Description
The disclosure of the present application may be understood more readily by reference to the following detailed description of preferred embodiments of the application and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. In case of conflict, the present specification, including definitions, will control.
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
A solution absorption-vapor compression combined cycle zero-emission sludge drying system comprises a spray tower 1, a thermal cycle component, a concentration component and a pollution discharge component, wherein the thermal cycle component and the concentration component are arranged on two opposite sides of the spray tower 1; the connecting channels are wrapped with heat insulation cotton, the blowdown assembly is arranged at the bottom of the spray tower 1 and removes sediments in the spray tower 1; the thermal circulation component reduces the dissipation of heat in the connecting channel; by utilizing the system, the waste heat of the drying waste gas can be utilized and the pollutants can be removed and then circularly used for the drying system while the system does not need to input any heat, and simultaneously, the moisture in the dried medium can be discharged by clean distilled water.
The thermal cycle assembly comprises a heat pump 2, a dryer 3, a heat exchanger 4 and a first water pump 5; a circulating waste gas pipe 31 for introducing waste gas of the dryer 3 into the spray tower 1 is communicated between the dryer 3 and the spray tower 1, and a drying waste gas pipe 11 for introducing steam in the spray tower 1 into the dryer 3 is communicated between the spray tower 1 and the dryer 3; the circulating waste gas pipe 31 is fully cleaned in the spray tower 1, and because the waste gas dried by the dryer 3 has higher temperature, after entering the spray tower 1, the waste gas is cleaned, the hygroscopic solution in the spray tower 1 absorbs the heat and moisture content of the waste gas, and after spraying, the vaporization latent heat of the tail gas is recovered, and the temperature of the spray liquid is increased; the purified tail gas in the spray tower 1 enters the dryer 3 through the drying waste gas pipe 11 to be recycled, so that the aim of recycling the waste gas is fulfilled. The system can efficiently utilize the heat in the waste gas to accelerate the drying efficiency of the dryer without inputting the heat again. In the present embodiment, an embodiment provided with a heat pump 2 is provided; in another embodiment, this can be achieved without the heat pump 2, to the same effect.
The hygroscopic solution is one or more of lithium bromide solution, calcium bromide solution and glycol.
A high-temperature water pipe 12 is arranged on the spray tower 1, the high-temperature water pipe 12 penetrates through the heat exchanger 4 and then is communicated with the spray tower 1, and a first water pump 5 is arranged on the high-temperature water pipe 12; the drier 3 is connected with an intermediate medium pipe 32, the intermediate medium pipe 32 passes through the heat pump 2 and then is communicated with the drier 3, and a medium heat source pipe 21 for transferring heat of the heat exchanger 4 is arranged between the heat exchanger 4 and the heat pump 2
In the waste gas process in the cleaning and drying machine 3, the moisture of waste gas is absorbed by the solution in the spray tower 1, therefore, the solution temperature in the spray tower 1 constantly rises, and the higher cleaning solution of temperature is taken out by first water pump 5, gets into heat exchanger 4 through high temperature water pipe 12, and the higher cleaning solution of temperature is behind heat exchanger 4, and the temperature of cleaning solution reduces, flows into in the spray tower 1 again at last.
The medium solution is contained in the intermediate medium pipe 32, the medium solution flowing out of the dryer 3 has a low temperature, passes through the heat exchanger 4, the medium solution in the intermediate medium pipe 32 absorbs heat in the heat exchanger 4, the temperature of the medium solution rises, the medium solution with a high temperature passes through the heat pump 2, the heat pump 2 further heats the medium solution, and the medium solution with a high temperature enters the dryer 3 for heat exchange. Utilize multistage heat pump to retrieve waste gas heat and be used for drying system, utilize the MVR system with dilute solution concentration, whole system reaches zero steam consumption.
The first water pump 5 and the heat exchanger 4 exchange heat recovered by the solution in the tower to be used as a preheating heat source of the heat pump 2, so that the electric energy consumption of the heat pump 2 is greatly reduced. The medium solution flowing out of the dryer 3 is low in temperature, is preheated by the heat exchanger 4, then enters the electric heat pump to be heated, the temperature of the medium solution rises, and the medium solution with high temperature enters the dryer 3 to be circulated for heat exchange. The heat of the waste gas is recovered by utilizing the multistage heat pump to be used as a preheating heat source of the heat pump 2, and the whole drying system only needs to provide a small amount of electricity consumption to drive the heat pump 2, so that the whole system reaches zero steam consumption.
Through the heat exchanger 4, the heat of the steam in the spray tower 1 is transferred to the medium solution, and the heat is transferred to the dryer 3 through the medium solution, so that the heat of the steam in the spray tower 1 is fully utilized.
After the drying waste gas is sprayed by the solution, the temperature of a dry ball rises, the dew point temperature is reduced, dust pollutants are purified and can be recycled as drying air, and zero emission of waste gas is achieved.
Because the waste gas that is produced by the dry material contains steam, in steam intercommunication waste gas enters into spray column 1 together, along with dry time is longer and longer, the steam that enters into in spray column 1 is more and more, can lead to the solution concentration in spray column 1 to reduce, consequently, in order to guarantee that the solution concentration in spray column 1 changes in a scope, need be continuous with the steam of spray column 1 and discharge.
The concentration component comprises a second water pump 6, a heat regenerator 7, an evaporator 8, a separator 9 and a compressor 10; a dilute liquid pipe 13 is arranged between the heat regenerator 7 and the spray tower 1 in a communication way, the second water pump 6 is installed on the dilute liquid pipe 13, the solution in the spray tower 1 enters the dilute liquid pipe 13 through the second water pump 6, and the heat regenerator 7 heats the solution in the dilute liquid pipe 13; a high-temperature thin liquid pipe 72 is communicated between the evaporator 8 and the heat regenerator 7, a steam pipe 81 is connected between the evaporator 8 and the separator 9, and a pipeline 91 is communicated between the separator 9 and the heat regenerator 7; the evaporator 8 is communicated with a condenser 82 for cooling the water vapor of the evaporator 8; a concentrated liquid pipe 71 is communicated between the heat regenerator 7 and the spray tower 1, and the concentrated liquid pipe 71 reflows the solution with higher concentration into the spray tower 1; the concentrate pipe 71 passes through the regenerator 7 to heat it; a secondary steam pipe 92 is connected between the separator 9 and the compressor 10, a return pipe 101 is connected between the compressor 10 and the evaporator 8, and heat in the return pipe 101 is transferred to the evaporator 8 to heat the evaporator 8.
The second water pump 6 sends the dilute solution in the spray tower 1 into the heat regenerator 7 to be preheated, then sends the dilute solution into the evaporator 8 to be concentrated, the concentrated secondary steam and the concentrated solution mixture enter the separator 9 to be flashed, the concentrated solution flows back to the heat regenerator 7 to be subjected to heat exchange and then flows into the spray tower 1 to continue to circulate for heat exchange, the secondary steam is pressurized by the compressor 10 and then continues to drive the evaporator 8 to be concentrated as new driving steam, and the whole process depends on the compressor 10 and the secondary steam to circulate as a driving heat source of the whole concentration-extracting assembly without steam consumption.
The sewage discharging assembly comprises a sewage discharging water pump 14 and a purifying system, and the sewage discharging water pump 14 pumps out the sewage in the spray tower 1 and purifies the sewage through the purifying system.
The first technical scheme is as follows:
feeding sludge for 10t/h at the temperature of 10-25 ℃, the moisture content of 70-85% and the partial pressure of water vapor of 15.8 kPa; the discharge temperature is 50-60 ℃, the moisture content is 10-25%, and the circulating waste gas needs 25-30 ten thousand Nm3H is used as the reference value. Drying balls at 50-60 ℃ at the outlet of the circulating waste gas dryer, wherein the dew point is 55 ℃ and the heat value is 24.3 MW; after the treatment of the absorption tower, the inlet waste gas of the dryer is dried balls at 65-75 ℃, the dew point at 45 ℃ and the partial pressure of water vapor is 9.6kPa, the heat value is reduced to 21MW, and the heat of 3.5MW is taken away by a single circulating absorption tower. The temperature of the intermediate medium of the heat exchanger entering the dryer is 65 ℃, the temperature of the intermediate medium of the heat exchanger exiting the dryer is 60 ℃, the heat quantity transferred to the dryer by the intermediate medium is 3.5MW, the heat quantity required by sludge drying is about 3.3MW, the heat quantity and the material quantity are provided by the heat exchanger, and the heat quantity and the material quantity of the whole system are balanced.
The second technical scheme runs the embodiment:
feeding sludge for 10t/h at the temperature of 10-25 ℃, the moisture content of 70-85% and the partial pressure of water vapor of 15.8 kPa; the discharge temperature is 50-60 ℃, the moisture content is 10-25%, and 60-65 ten thousand Nm is needed for circulating waste gas3H is used as the reference value. The outlet of the circulating waste gas dryer is saturated at 45-50 ℃ and has a heat value of 51 MW; after treatment of the absorption tower, the inlet waste gas of the dryer is dried balls at 70 ℃, has a dew point of 42-46 ℃, has a water vapor partial pressure of 9.6kPa and a heat value of 51MW, and is subjected to isenthalpic humidification in the whole process.
The foregoing examples are merely illustrative and serve to explain some of the features of the methods described herein. The appended claims are intended to claim as broad a scope as can be conceived and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the application. Also, where numerical ranges are used in the claims, subranges therein are included, and variations in these ranges are also to be construed as possible being covered by the appended claims.
Claims (4)
1. The utility model provides a solution absorbs zero release sludge drying system of vapor compression combined cycle which characterized in that: the drying system comprises a spray tower (1) and a dryer (3) which are filled with hygroscopic solution, wherein a circulating waste gas pipe (31) which leads waste gas of the dryer (3) into the spray tower (1) is arranged between the dryer (3) and the spray tower (1), and a drying waste gas pipe (11) which leads waste gas in the spray tower (1) into the dryer (3) is arranged between the spray tower (1) and the dryer (3);
the sludge drying system further comprises a heat exchanger (4), a high-temperature water pipe (12) is arranged on the spray tower (1), the high-temperature water pipe (12) penetrates through the heat exchanger (4) and then is communicated with the spray tower (1), and a first water pump (5) is mounted on the high-temperature water pipe (12);
The sludge drying system further comprises a heat pump (2), an intermediate medium pipe (32) is connected to the dryer (3), the intermediate medium pipe (32) penetrates through the heat pump (2) and then is communicated with the dryer (3), and a medium heat source pipe (21) for transferring heat of the heat exchanger (4) is arranged between the heat exchanger (4) and the heat pump (2);
the spray tower (1) is provided with a concentration component for improving the concentration of the solution in the spray tower (1);
the concentration component comprises a second water pump (6), a heat regenerator (7), an evaporator (8), a separator (9) and a compressor (10), a dilute liquid pipe (13) is communicated between the heat regenerator (7) and the spray tower (1), a concentrated liquid pipe (71) is communicated between the heat regenerator (7) and the spray tower (1), a high-temperature dilute liquid pipe (72) is communicated between the evaporator (8) and the heat regenerator (7), a steam pipe (81) is connected between the evaporator (8) and the separator (9), a pipeline (91) is communicated between the separator (9) and the heat regenerator (7), a secondary steam pipe (92) is connected between the separator (9) and the compressor (10), and a return pipe (101) is connected between the compressor (10) and the evaporator (8).
2. The system of claim 1, wherein the system is characterized in that: the evaporator (8) is communicated with a condenser (82) for cooling the water vapor of the evaporator (8).
3. The system of claim 1, wherein the system is characterized in that: the hygroscopic solution is one or more of lithium bromide solution, calcium bromide solution and glycol.
4. The system of claim 1, wherein the system is characterized in that: and a pollution discharge assembly for pumping waste materials in the spray tower (1) is arranged at the bottom of the spray tower (1).
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| CN202110221030.5A CN112979139B (en) | 2021-02-26 | 2021-02-26 | Zero-emission sludge drying system adopting solution absorption-vapor compression combined cycle |
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| CN202110221030.5A CN112979139B (en) | 2021-02-26 | 2021-02-26 | Zero-emission sludge drying system adopting solution absorption-vapor compression combined cycle |
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| CN112979139B true CN112979139B (en) | 2022-06-28 |
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| CA2965927A1 (en) * | 2016-07-15 | 2017-07-11 | Msw Consulting, Inc. | Dryer exhaust heat recovery |
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| CN111536715A (en) * | 2020-05-13 | 2020-08-14 | 宝莲华七彩节能(江苏)有限公司 | Heat pump drying system with waste heat recovery assembly and operation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010001234A1 (en) * | 2010-01-26 | 2011-07-28 | Dürr Systems GmbH, 74321 | Plant for drying car bodies with gas turbine |
| US10451359B2 (en) * | 2017-08-08 | 2019-10-22 | Saudi Arabian Oil Company | Natural gas liquid fractionation plant waste heat conversion to power using Kalina cycle |
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2021
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|---|---|---|---|---|
| JPH0933024A (en) * | 1995-07-14 | 1997-02-07 | Kubota Corp | Heat recovering method in exhaust gas treatment |
| CN201041454Y (en) * | 2007-04-06 | 2008-03-26 | 盐城市康杰机械制造有限公司 | Nitrogen protection brazing furnace intermittent furnace drying device |
| CA2965927A1 (en) * | 2016-07-15 | 2017-07-11 | Msw Consulting, Inc. | Dryer exhaust heat recovery |
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Effective date of registration: 20240119 Address after: No. 9260 Xinge Road, Xinqiao Town, Songjiang District, Shanghai, 201600 Patentee after: Shanghai Haomu Carbon Jia Energy saving Equipment Co.,Ltd. Address before: 201400 Fengxian District Talent Development Service Center, No.150 Renmin South Road, Nanqiao Town, Fengxian District, Shanghai Patentee before: Xu Jingyu |
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